What happens to the pressure when volume increases or decreases and temperature stays constant?

Answer 1

When the temperature is increased, the volume of a container gets larger, and vice versa. This can be found by examining one of the fundamental laws of gasses, the combined gas law. It states that the product of pressure and volume, divided by temperature yields a constant value:

pV/T=k

Where k is a constant with units of energy/temperature.

Thus, in order for k to remain constant, temperature and volume must be varied inversely to one another.

Answer 2

The pressure will increase.

Temperature is the measure of the average kinetic energy in a substance.

So if temperature is increased, the particles of the substance will move faster.

This will result in more collisions on the wall of the container, or in other words, higher pressure.

To visualize this with the ideal gas law, take a look at the equation:

PV = nRT

P: pressure

V: volume

n: number of moles of gas

R: a constant

T: temperature

You can see that if all variables were kept the same, and temperature was increased, pressure would also have to increase. Temperature and pressure are therefore directly related.

Hope this helps!

Answer 3

Boyle's law:

(p1.V1)T=constant = (p2.V2)T=constant

So V2 > V1 makes p2 < p1 : the pressure decreases.

Answer 4

If the contents in the container are gaseous, then the pressure will increase as temperature increases. The pressure will decrease as temperature decreases.

Answer 5

If you decrease the volume of the container, the pressure rises, and vice versa.

Answer 6

Since pressure is inversely proportional to volume(according to Boyle's law), if volume decreases, pressure will increase and vice versa i.e. volume increases pressure decreases!